Badania retrospektywne zakażeń Streptococcus pneumoniae u dzieci hospitalizowanych w Klinice Otolaryngologii Dziecięcej WUM

Piotr Kwast, *Lidia Zawadzka-Głos

Summary
Introduction. Prevalence of Streptococcus pneumoniae – induced infections has dropped significantly in Poland since the introduction of the PCV7 vaccine in the year 2000, however it remains one of the most important bacterial pathogens responsible for both otitis media and acute sinusitis in children.
Aim. To analyse patients with otitis media and sinusitis hospitalised at the Department of Pediatric Otolaryngology focusing on microbiological findings and to evaluate to role of S. pneumoniae in those infections.
Material and methods. All patients hospitalised in the year 2015 at the Department of Pediatric Otolaryngology Medical University in Warsaw with the diagnosis of purulent otitis media or sinusitis were analysed with their age and gender, hospitalisation length and results of microbiological cultures were taken into account.
Results. 183 patients matching the criteria were found 96 (52%) boys and 87 (48%) girls aged between 3 months and 17 years (median age 7 years). Microbiological culture was taken in 75 (41%) cases, out of which 46 (61%) were positive. S. pneumoniae was found in 13 cases (28% of positive cultures and 7.1% of total patients). In 3 (23%) cultures S. pneumoniae coexisted with other pathogens. Two cases of penicillin-resistant S. pneumoniae were found. Median hospitalisation length was 5 days (range 1-16 days).
Conclusions. Streptococcus pneumoniae infection was proven in only a small percentage of patients with otitis media and sinusitis. However, this may not reflect the actual number of pneumococcal infections, as in some cases cultures have not been taken or came back false negative.

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